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2025-03-02crypto/krb5: Implement crypto self-testingDavid Howells
Implement self-testing infrastructure to test the pseudo-random function, key derivation, encryption and checksumming. Add the testing data from rfc8009 to test AES + HMAC-SHA2. Add the testing data from rfc6803 to test Camellia. Note some encryption test vectors here are incomplete, lacking the key usage number needed to derive Ke and Ki, and there are errata for this: https://www.rfc-editor.org/errata_search.php?rfc=6803 Signed-off-by: David Howells <dhowells@redhat.com> cc: Herbert Xu <herbert@gondor.apana.org.au> cc: "David S. Miller" <davem@davemloft.net> cc: Chuck Lever <chuck.lever@oracle.com> cc: Marc Dionne <marc.dionne@auristor.com> cc: Eric Dumazet <edumazet@google.com> cc: Jakub Kicinski <kuba@kernel.org> cc: Paolo Abeni <pabeni@redhat.com> cc: Simon Horman <horms@kernel.org> cc: linux-afs@lists.infradead.org cc: linux-nfs@vger.kernel.org cc: linux-crypto@vger.kernel.org cc: netdev@vger.kernel.org
2025-03-02crypto/krb5: Implement the Camellia enctypes from rfc6803David Howells
Implement the camellia128-cts-cmac and camellia256-cts-cmac enctypes from rfc6803. Note that the test vectors in rfc6803 for encryption are incomplete, lacking the key usage number needed to derive Ke and Ki, and there are errata for this: https://www.rfc-editor.org/errata_search.php?rfc=6803 Signed-off-by: David Howells <dhowells@redhat.com> cc: Herbert Xu <herbert@gondor.apana.org.au> cc: "David S. Miller" <davem@davemloft.net> cc: Chuck Lever <chuck.lever@oracle.com> cc: Marc Dionne <marc.dionne@auristor.com> cc: Eric Dumazet <edumazet@google.com> cc: Jakub Kicinski <kuba@kernel.org> cc: Paolo Abeni <pabeni@redhat.com> cc: Simon Horman <horms@kernel.org> cc: linux-afs@lists.infradead.org cc: linux-nfs@vger.kernel.org cc: linux-crypto@vger.kernel.org cc: netdev@vger.kernel.org
2025-03-02crypto/krb5: Implement the AES enctypes from rfc8009David Howells
Implement the aes128-cts-hmac-sha256-128 and aes256-cts-hmac-sha384-192 enctypes from rfc8009, overriding the rfc3961 kerberos 5 simplified crypto scheme. Signed-off-by: David Howells <dhowells@redhat.com> cc: Herbert Xu <herbert@gondor.apana.org.au> cc: "David S. Miller" <davem@davemloft.net> cc: Chuck Lever <chuck.lever@oracle.com> cc: Marc Dionne <marc.dionne@auristor.com> cc: Eric Dumazet <edumazet@google.com> cc: Jakub Kicinski <kuba@kernel.org> cc: Paolo Abeni <pabeni@redhat.com> cc: Simon Horman <horms@kernel.org> cc: linux-afs@lists.infradead.org cc: linux-nfs@vger.kernel.org cc: linux-crypto@vger.kernel.org cc: netdev@vger.kernel.org
2025-03-02crypto/krb5: Implement the AES enctypes from rfc3962David Howells
Implement the aes128-cts-hmac-sha1-96 and aes256-cts-hmac-sha1-96 enctypes from rfc3962, using the rfc3961 kerberos 5 simplified crypto scheme. Signed-off-by: David Howells <dhowells@redhat.com> cc: Herbert Xu <herbert@gondor.apana.org.au> cc: "David S. Miller" <davem@davemloft.net> cc: Chuck Lever <chuck.lever@oracle.com> cc: Marc Dionne <marc.dionne@auristor.com> cc: Eric Dumazet <edumazet@google.com> cc: Jakub Kicinski <kuba@kernel.org> cc: Paolo Abeni <pabeni@redhat.com> cc: Simon Horman <horms@kernel.org> cc: linux-afs@lists.infradead.org cc: linux-nfs@vger.kernel.org cc: linux-crypto@vger.kernel.org cc: netdev@vger.kernel.org
2025-03-02crypto/krb5: Add an API to perform requestsDavid Howells
Add an API by which users of the krb5 crypto library can perform crypto requests, such as encrypt, decrypt, get_mic and verify_mic. These functions take the previously prepared crypto objects to work on. Signed-off-by: David Howells <dhowells@redhat.com> cc: Herbert Xu <herbert@gondor.apana.org.au> cc: "David S. Miller" <davem@davemloft.net> cc: Chuck Lever <chuck.lever@oracle.com> cc: Marc Dionne <marc.dionne@auristor.com> cc: Eric Dumazet <edumazet@google.com> cc: Jakub Kicinski <kuba@kernel.org> cc: Paolo Abeni <pabeni@redhat.com> cc: Simon Horman <horms@kernel.org> cc: linux-afs@lists.infradead.org cc: linux-nfs@vger.kernel.org cc: linux-crypto@vger.kernel.org cc: netdev@vger.kernel.org
2025-03-02crypto/krb5: Add an API to alloc and prepare a crypto objectDavid Howells
Add an API by which users of the krb5 crypto library can get an allocated and keyed crypto object. For encryption-mode operation, an AEAD object is returned; for checksum-mode operation, a synchronous hash object is returned. Signed-off-by: David Howells <dhowells@redhat.com> cc: Herbert Xu <herbert@gondor.apana.org.au> cc: "David S. Miller" <davem@davemloft.net> cc: Chuck Lever <chuck.lever@oracle.com> cc: Marc Dionne <marc.dionne@auristor.com> cc: Eric Dumazet <edumazet@google.com> cc: Jakub Kicinski <kuba@kernel.org> cc: Paolo Abeni <pabeni@redhat.com> cc: Simon Horman <horms@kernel.org> cc: linux-afs@lists.infradead.org cc: linux-nfs@vger.kernel.org cc: linux-crypto@vger.kernel.org cc: netdev@vger.kernel.org
2025-03-02crypto/krb5: Add an API to query the layout of the crypto sectionDavid Howells
Provide some functions to allow the called to find out about the layout of the crypto section: (1) Calculate, for a given size of data, how big a buffer will be required to hold it and where the data will be within it. (2) Calculate, for an amount of buffer, what's the maximum size of data that will fit therein, and where it will start. (3) Determine where the data will be in a received message. Signed-off-by: David Howells <dhowells@redhat.com> cc: Herbert Xu <herbert@gondor.apana.org.au> cc: "David S. Miller" <davem@davemloft.net> cc: Chuck Lever <chuck.lever@oracle.com> cc: Marc Dionne <marc.dionne@auristor.com> cc: Eric Dumazet <edumazet@google.com> cc: Jakub Kicinski <kuba@kernel.org> cc: Paolo Abeni <pabeni@redhat.com> cc: Simon Horman <horms@kernel.org> cc: linux-afs@lists.infradead.org cc: linux-nfs@vger.kernel.org cc: linux-crypto@vger.kernel.org cc: netdev@vger.kernel.org
2025-03-02crypto/krb5: Implement Kerberos crypto coreDavid Howells
Provide core structures, an encoding-type registry and basic module and config bits for a generic Kerberos crypto library. Signed-off-by: David Howells <dhowells@redhat.com> cc: Herbert Xu <herbert@gondor.apana.org.au> cc: "David S. Miller" <davem@davemloft.net> cc: Chuck Lever <chuck.lever@oracle.com> cc: Marc Dionne <marc.dionne@auristor.com> cc: Eric Dumazet <edumazet@google.com> cc: Jakub Kicinski <kuba@kernel.org> cc: Paolo Abeni <pabeni@redhat.com> cc: Simon Horman <horms@kernel.org> cc: linux-afs@lists.infradead.org cc: linux-nfs@vger.kernel.org cc: linux-crypto@vger.kernel.org cc: netdev@vger.kernel.org